What Are the Risks During and in the Early Postoperative Period of Heart Surgery?
Heart surgeries have become much safer today. However, as the heart is the body’s most vital organ, these operations require seriousness. Below, I have explained the causes of death that can rarely occur during surgery and in the first few days after surgery in simple language that everyone can understand. Remember: these situations are rare, and most patients recover without any problems.
Reasons Observed During Surgery
Failure of the Heart to Resume Functioning
During surgery, the heart is temporarily stopped and restarted after the procedure is complete. In rare cases, the heart may not restart sufficiently. Common causes include pre-existing heart fatigue, a previous heart attack, or weak heart muscle. In such cases, intensive care support and, if necessary, mechanical circulatory support may be required.
Uncontrollable Bleeding
Heart surgery requires working with large blood vessels. Sometimes bleeding cannot be controlled due to blood clotting problems, anticoagulant medications used, or the sensitivity of the vascular structure. Rapid intervention, blood products, and surgical repair are vital.
Serious Arrhythmias
If the heart’s electrical system is affected, the heart may slow down considerably or beat too fast/irregularly. Such arrhythmias can suddenly become life-threatening; rhythm-correcting drugs, electrical shock (defibrillation) or temporary pacemakers may be used.
Causes Observed in the Early Period After Surgery
Heart Failure
Even if the operation is successful, the heart may not be able to pump enough blood to the body. This condition is more common in patients who already have a weak heart, have undergone emergency surgery, or are elderly. Treatment involves intensive care monitoring, medication support, and mechanical support when necessary.
Lung Problems
Problems such as lung infection, respiratory failure, or prolonged dependence on a ventilator may develop after surgery. If the lungs do not function adequately, the body becomes oxygen-deprived; early mobilisation, respiratory physiotherapy, and infection control are important.
Brain-Related Problems (Stroke)
Blood clots that break off from blood vessels during or after surgery can travel to the brain and cause a stroke (paralysis). This can lead to loss of consciousness, loss of movement, or, rarely, death. Risk factors and surgical techniques are used to try to reduce this risk.
Infections
Infection of the sternum, lung infection, or bloodstream infection (sepsis) can cause serious problems in the early stages. Sterile conditions, antibiotic prophylaxis, and wound care reduce the risk of infection.
Kidney Failure
The heart’s inability to pump enough blood reduces blood flow to the kidneys, which can lead to decreased urine output and toxin build-up. Early fluid balance management and renal support treatments are administered when necessary.
Situations Where the Risk is Higher
The following situations may increase the risks of surgery and the early postoperative period:
- Advanced age
- Diabetes
- Kidney or lung disease
- Previous heart surgery
- Emergency surgery
- Surgery following a heart attack
- In the presence of these factors, teams plan more frequent monitoring and additional precautions.
Key Points and Conclusions
- Risks are rare. Most patients recover from surgery and return to their normal lives.
- Surgery is often life-saving. Without surgery, the risk of death in some patients may be higher than the risks associated with surgery.
- Preparation and follow-up save lives. Experienced surgeons, advanced intensive care, and teamwork reduce risks.
- It is important to inform the patient and their relatives. Asking the team questions and learning about the risks and the expected process is reassuring.
Conclusion: Heart surgery is serious, but thanks to modern medicine, safety and success rates are high. Risks are assessed in advance, personalised precautions are taken, and close follow-up is carried out after surgery. As a result, the vast majority are discharged in good health.
